Originally Posted by mr_X
Start it on live- Get black worms and/or a couple spoon fulls of brine. That should get it going. I just went through the same thing with my blue throat trigger...It took him 3 days to eat live, and another two before he eats everything I throw at him.
black worms are a bad idea for tangs, angels or any other mainly herbivore fish. I have learned this the hard way. what can happen is they can eat them numerous times with no ill effect then all of the sudden they are completely bound up/constipated and usually die within 3 days. I have personally seen this with blue and yellow tangs as well as dwarf angels.
Recently talking with the owner of a lfs
he mentioned that he had a large naso that he had for over 3 years, that had that exact same thing happen.
It is tempting as they are readily available and you can feed them and see no ill effects or have your fish bloat up and die in a few days, it really is a toss of the dice, but I've seen it enough times to not want to risk feeding black worms to my salt anymore.